(B) Inside a hollow charged metal sphere, the electric field intensity is always zero because there is no charge enclosed within the Gaussian surface

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$\frac{Q}{4 \pi \varepsilon_{0} R}$ and zero

(B) Inside a hollow charged metal sphere, the electric field intensity is always zero because there is no charge enclosed within the Gaussian surface inside the sphere.$\therefore E = 0$.However, the electric potential inside the sphere is constant and equal to the potential at its surface.The potential on the surface of the hollow sphere is given by:$V = \frac{1}{4 \pi \varepsilon_{0}} \cdot \frac{Q}{R} = \frac{Q}{4 \pi \varepsilon_{0} R}$.Thus, inside the sphere, the potential is $\frac{Q}{4 \pi \varepsilon_{0} R}$ and the electric field intensity is zero.

Class 12 Physics Electric Potential and Capacitance Conductor, Electrostatic Shielding, Induced Charge and Charge Redistribution on conductor

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$A$ hollow metal sphere of radius $R$ is charged with a charge $Q$. The electric potential and intensity inside the sphere are respectively

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A
$\frac{Q}{4 \pi \varepsilon_{0} R^{2}}$ and $\frac{Q}{4 \pi \varepsilon_{0} R}$
B
$\frac{Q}{4 \pi \varepsilon_{0} R}$ and zero
C
zero and zero
D
$\frac{4 \pi \varepsilon_{0} Q}{R}$ and $\frac{Q}{4 \pi \varepsilon_{0} R^{2}}$

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Electric Potential and Capacitance

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Conductor, Electrostatic Shielding, Induced Charge and Charge Redistribution on conductor

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$A$ hollow metal sphere of radius $R$ is charged with a charge $Q$. The electric potential and intensity inside the sphere are respectively

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Two metal spheres of radius $R$ and $3R$ have the same surface charge density $\sigma$. If they are brought in contact and then separated, the surface charge density on the smaller and bigger sphere becomes $\sigma_1$ and $\sigma_2$, respectively. The ratio $\frac{\sigma_1}{\sigma_2}$ is:

$A$ solid conducting sphere of radius $a$ has a net positive charge $2Q$. $A$ conducting spherical shell of inner radius $b$ and outer radius $c$ is concentric with the solid sphere and has a net charge $-Q$. The surface charge density on the inner and outer surfaces of the spherical shell will be

Two identical conductors of copper and aluminium are placed in identical electric fields. The magnitude of induced charge in the aluminium will be

Assertion: $A$ metallic shield in the form of a hollow shell may be built to block an electric field.Reason: In a hollow spherical shield,the electric field inside it is zero at every point.

If two conducting spheres are separately charged and then brought in contact,which of the following statements is true?

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Assertion: $A$ metallic shield in the form of a hollow shell may be built to block an electric field.
Reason: In a hollow spherical shield,the electric field inside it is zero at every point.